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Crews last week resumed their brisk pace at Hassalo on Eighth, after snow halted work temporarily.

Greater construction challenges loom for the $192 million project, where 1 million square feet of residential and retail space is being built on four city blocks in the Lloyd District. American Assets Trust is adding one 21-story building, one six-story building and one five-story building with 657 residential units, 58,000 square feet of retail space and 1,200 underground parking stalls.

Major coordination work will be needed when the project goes vertical in March, said Travis Harris, project superintendent for Turner Construction. Eight subcontractors with about 130 people are working on the project, with separate crews tackling each of the buildings at the same time, he said.

“It’s a very parallel project,” he said. “There’s a lot of activity. Doing it one building at a time would certainly be easier, but we’re going to hit the market (with these buildings) at the same time.”

By summer, 30 subcontractors with 350 people will be on the project site during the six-month peak period, he said.

Crews last week scrambled to catch up on concrete pours for the three-level parking garage. Harris said he is hoping to start building above ground next month.

Another challenge is building on a site with three sides next to public transportation – light rail, streetcar and bus lines make it impossible to close down those streets when needed, Harris said.

“The real tough one is the MAX line on Holladay Street because of the proximity of the general public to our work site,” he said.

To compensate, more cranes – rather than forklifts or trucks – will be used, and more coordination will take place, Harris said. Turner also will erect barriers in certain areas to keep the work site safe, he added.